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Abrasive Materials

see detailes in the section of abrasives.


Grit size

The term "grit size" here means the sizes of diamond/CBN crystals. The grinding efficiency of diamond/CBN tool or finish of a workpiece depends, to a great extent, on the grit size of tools.

Application range for each of grit size
Grinding Process
Rough Grinding
Semi-finishing
Finishing
Lapping
Grit No.
80/100 ~ 120/140
120/140 ~ 200/230
200/230 ~ 40/50um
40/50um ~ 0/1um

Finish achieved by using each of grit sizes
Grit sizes
Surface finish after working
Resin bonded
Metal bonded
Vitreous bonded
Electroplated bonded
80/100 ~ 100/120
/
▽6 ~ ▽8
▽7 ~ ▽8
▽6 ~ ▽8
100/120 ~ 140/170
▽8 ~ ▽9
▽7 ~ ▽9
▽8 ~ ▽9
▽7 ~ ▽9
140/170 ~ 230/270
▽9 ~ ▽10
▽8 ~ ▽9
▽9 ~ ▽10
▽8 ~ ▽9
270/325 ~ 10/20um
▽10 ~ ▽11
▽10 ~ ▽11
▽10 ~ ▽11
▽9 ~ ▽11
10/20um ~ 2.5/5um
▽11 ~ ▽12
▽11 ~ ▽12
/
▽11 ~ ▽12
2.5/5um ~ 1/2.5um
▽12 ~ ▽13
/
/
/
 

Comparative Chart of grain sizes
Size range in um
ANSI
FEBA
425/300
40/50
426
300/250
50/60
301
250/212
60/70
251
212/180
70/80
213
180/150
80/100
180
150/125
100/120
151
125/106
120/140
126
106/90
140/170
107
90/75
170/200
91
75/63
200/230
76
63/53
230/270
64
53/45
270/325
54
45/38
325/400
46
38/25
400/500

The grit designation is prefixed with D to denote diamond and B to denote CBN.

Sieving with W.S.Tyler Group’s sieves(USA), the mesh size Shansun keep in not more than 5%.

You have any questions,  help please contact us .
© 2007 ShanSun Diamond Industries Co.,Ltd.
BSI:9001:2000 Hold certificate no:FS518717 Emailtome:shansun@shansun.com